Siloh Presbyterian Church is a Grade II listed building in the Caerphilly local planning authority area, Wales. First listed on 31 March 1999. Chapel.
Siloh Presbyterian Church
- WRENN ID
- crooked-render-acorn
- Grade
- II
- Local Planning Authority
- Caerphilly
- Constituency
- Caerphilly MP: Chris Evans (Lab)
- Country
- Wales
- Date first listed
- 31 March 1999
- Type
- Chapel
- Address
- Siloh Presbyterian Church, Gelli-Groes, Pontllanfraith
- OS grid reference
- ST 176 947
- Coordinates
- 51.64559, -3.19181
- Source
- Cadw listing
Description
Siloh Presbyterian Church is a small chapel built in 1813, facing the road. It is constructed of stone with a scored-rendered finish and has a hipped roof covered with artificial slate. The main chapel features two full-height round-headed windows with tooled sills and moulded surrounds that include a keystone. A moulded date plaque reading 'Siloh 1813' is located between the windows, which have been fitted with replaced glazing. At each end of the chapel, there are doorways with rusticated surrounds and replaced boarded doors.
Attached to each end of the chapel, though not symmetrically, are lean-tos. The left lean-to serves as the Sunday School and has a separate doorway with a similar design and a small pane window with a moulded surround. The right lean-to has further doorways and windows and is reputedly a former dwelling for the minister. A continuous moulded eaves band runs across the entire front, and the lean-tos feature rusticated quoins that match the main door surrounds. The Sunday School wing has a deep plinth and side casement windows, while the rear retains original 6/6 pane sash windows.
Inside, the chapel has a three-sided gallery with a wide-panelled front and a central clock, supported by slender cast iron columns. The seating consists of raked pews on each floor. There are part-glazed entrance lobbies with 4-panelled doors on either side of the platform at the front. The central pulpit is flanked by a high arched panelled reredos with an inscription painted above, and there is no set fawr. The rear of the chapel is illuminated by part blanked out 8-pane windows. Boarded stairs lead up to the gallery at the front. The interior of the Sunday School/Vestry wing features a boarded dado and a fireplace in the side wall that was formerly shared with the chapel.
Local climate
Siloh Presbyterian Church sits in a wetter-than-average part of the UK, with an average of 1,060 mm of rain a year. This makes it wetter than 85% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 81% of listed buildings.
It experiences an average of 32 freeze-thaw cycles a year, fewer than 59% of listed buildings. Of these, 13 follow at least 1 mm of rain in the preceding 48 hours. Average temperatures at this location have risen by 0.3°C per decade since 1991.
Averages for 1991–2020; temperature trend 1991–2025. Figures describe the wider area (a grid cell of roughly 10 km), not the individual site. Contains modified Copernicus Climate Change Service information 2026.
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- Detailed attributes — period, style, materials, features
- Flood risk assessment
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